Patent US3073355A successfully refreshed from Google Patents.
US3073355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet binder
Assignee: Individual
•
Filing: 1958-07-09
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Granted: 1963-01-15
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Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 George G Grinnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:46
CPC Classifications
B; B21; B21F; B21F1/00; Y; Y10; Y10T; Y10T408/00; Y10T408/03; Y10T408/55; Y10T408/561
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
APPARATUS FOR FORMING U-SHAPED FASTENERS FROM WIRE, EACH FASTENER HAVING TWO LEG PORTIONS AND A WIRE CROSSPIECE PORTION CONNECTING SAID LEG PORTIONS, SAID APPARATUS COMPRISING A DIE HAVING A LONGITUDINAL PASSAGEWAY, A RECIPROCATING TOOL MOVABLE IN SAID PASSAGEWAY, SAID PASSAGEWAY BEING FORMED INTEGRALLY WITH SPACED PARALLEL GUIDE CHANNELS STRADDLING SAID PASSAGEWAY FOR RECEIVING AND GUIDING SAID FASTENER LEG PORTIONS, SAID RECIPROCATING TOOL HAVING SPACED EDGE PORTIONS OF ARCUATE CONFIGURATION PROJECTING FORWARDLY OF THE OPPOSED LATERAL EDGES OF SAID TOOL FOR ENGAGING SAID WIRE WHEREBY SAID WIRE WILL NOT BE BENT AT A SHARP ANGLE WHEN ENGAGED THEREBY, SAID ARCUATE FORWARD EDGE PORTIONS BEING INTERMEDIATE SAID GUIDE CHANNELS WHEN DISPOSED IN SAID PASSAGEWAY AND ENGAGEABLE WITH A PORTION OF WIRE FROM WHICH SAID FASTENER CROSSPIECE IS FORMED, WHEREBY THE SAME MAY BE FORCED INTO SAID DIE PASSAGEWAY AND SAID WIRE PORTIONS STRADDLING SAID PORTION ENGAGING SAID TOOL FORWARD EDGE PORTIONS MAY BE BENT RELATIVE THERETO AND FORCED INTO SAID PARALLEL GUIDE CHANNELS STRADDLING SAID PASSAGEWAY.
Claim 2
Dependent Claim
164 words
APPARATUS FOR FORMING U-SHAPED FASTENERS FROM WIRE, EACH FASTENER HAVING TWO LEG PORTIONS AND A WIRE CROSSPIECE PORTION CONNECTING SAID LEG PORTIONS, SAID APPARATUS COMPRISING A DIE HAVING A LONGITUDINAL PASSAGEWAY, A RECIPROCATING TOOL MOVABLE IN SAID PASSAGEWAY, SAID PASSAGEWAY BEING FORMED INTEGRALLY WITH SPACED PARALLEL GUIDE CHANNELS STRADDLING SAID PASSAGEWAY FOR RECEIVING AND GUIDING SAID FASTENER LEG PORTIONS, SAID RECIPROCATING TOOL HAVING SPACED EDGE PORTIONS OF ARCUATE CONFIGURATION PROJECTING FORWARDLY OF THE OPPOSED LATERAL EDGES OF SAID TOOL FOR ENGAGING SAID WIRE WHEREBY SAID WIRE WILL NOT BE BENT AT A SHARP ANGLE WHEN ENGAGED THEREBY, SAID ARCUATE FORWARD EDGE PORTIONS BEING INTERMEDIATE SAID GUIDE CHANNELS WHEN DISPOSED IN SAID PASSAGEWAY AND ENGAGEABLE WITH A PORTION OF WIRE FROM WHICH SAID FASTENER CROSSPIECE IS FORMED, WHEREBY THE SAME MAY BE FORCED INTO SAID DIE PASSAGEWAY AND SAID WIRE PORTIONS STRADDLING SAID PORTION ENGAGING SAID TOOL FORWARD EDGE PORTIONS MAY BE BENT RELATIVE THERETO AND FORCED INTO SAID PARALLEL GUIDE CHANNELS STRADDLING SAID PASSAGEWAY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |